Question

O.1 The scores of a test of l5 students
are a follows
23, 25, 29, 19; 25 30,8, 9, 15, 25, 24, 21 ,25 ,28 ,17


Find the median.​

Answer 1

Answer:

Step-by-step explanation:

The scores of a test of l5 students

are a follows

23, 25, 29, 19; 25 30,8, 9, 15, 25, 24, 21 ,25 ,28 ,17

Find the mode and median.

mode of the data series=25

median of the data series=9

Answer 2

Answer:

median of given scores is 24

Step-by-step explanation:

given that :

scores of a test of 15 students are:

23,  25,  29,  19,  25,  30,  8,   9,  15,  25,   24,  21,  25,  28,  17.

to find the median , let us first arrange the given test scores in either ascending order or descending order.

arrange the scores in ascending order.

⇒  8, 9, 15, 17, 19, 21, 23, 24, 25, 25, 25, 25, 28, 29, 30

⇒  we have 15 number of scores in total.

⇒ divide 15 by 2

⇒ we get (15/2) = 7.5

⇒  so 8th observation is the median.

because median is the center of given observations.

from   8, 9, 15, 17, 19, 21, 23, 24, 25, 25, 25, 25, 28, 29, 30 scores;

value of  8th score is  '24'